Loess deposits in Beijing and their paleoclimatic implications during the last interglacial-glacial cycle

doi:10.1016/j.quascirev.2017.10.023

	Loess deposits in Beijing and their paleoclimatic implications during the last interglacial-glacial cycle
	Tian, Shengchen 1,2; Sun, Jimin 1,2; Gong, Zhijun 3
刊名	QUATERNARY SCIENCE REVIEWS
	2017-12-01
卷号	177 页码:78-87
关键词	Loess Osl Dating Paleoclimate The Last Interglacial-glacial Cycle Beijing
ISSN号	0277-3791
DOI	10.1016/j.quascirev.2017.10.023
文献子类	Article
英文摘要	Loess-paleosol sequences are important terrestrial paleoclimatic archives in the semi-arid region of north-central China. Compared with the numerous studies on the loess of the Chinese Loess Plateau, the eolian deposits, near Beijing, have not been well studied. A new loess section in the northeast suburb of Beijing provides an opportunity for reconstructing paleoenvironmental changes in this region. An optically stimulated luminescence (OSL) chronology yields ages of 145.1 to 20.5 ka, demonstrating that the loess deposits accumulated during the last interglacial-glacial cycle. High-resolution climatic proxies, including color-index, particle size and magnetic parameters, reveal orbital-scale climatic cycles, corresponding to marine oxygen isotope stages (MIS) 6 to MIS 2. In contrast to the loess deposits of the central Loess Plateau, loess near Beijing is a mixture of distal dust materials from gobi and sand deserts in the arid part of northwestern China and proximal, local alluvial sediments. Climatic change in Beijing during the last interglacial-glacial cycle was controlled primarily by the changing strength of the East Asian monsoon. Paleosols developed during the last interglacial complex (between 144.0 and 73.0 ka) and the interstadial of the last glaciation (between 44.6 and 36.2 ka), being associated with an enhanced summer monsoon in response to increased low-latitude insolation and a weakened Siberia High. Loess accumulation occurred during cold-dry stages of the last glaciation, in response to the intensified winter monsoon driven by the strengthened Siberia High and its longer residence time. (C) 2017 Elsevier Ltd. All rights reserved.
WOS关键词	CHINESE LOESS ; MAGNETIC-SUSCEPTIBILITY ; GRAIN-SIZE ; MONSOON CLIMATE ; WESTERN PACIFIC ; MARGINAL SEAS ; K-FELDSPAR ; EAST-ASIA ; LUMINESCENCE ; PLATEAU
WOS研究方向	Physical Geography ; Geology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000418203900005
资助机构	National Nature Science Foundation of China(41290251 ; National Nature Science Foundation of China(41290251 ; 41672168) ; 41672168) ; National Nature Science Foundation of China(41290251 ; National Nature Science Foundation of China(41290251 ; 41672168) ; 41672168) ; National Nature Science Foundation of China(41290251 ; National Nature Science Foundation of China(41290251 ; 41672168) ; 41672168) ; National Nature Science Foundation of China(41290251 ; National Nature Science Foundation of China(41290251 ; 41672168) ; 41672168)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/82176]
专题	中国科学院地质与地球物理研究所
通讯作者	Sun, Jimin
作者单位	1.Chinese Acad Sci, Key Lab Cenozo Geol & Environm, Inst Geol & Geophys, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.East China Univ Sci & Technol, Nanchang, Jiangxi, Peoples R China
推荐引用方式 GB/T 7714	Tian, Shengchen,Sun, Jimin,Gong, Zhijun. Loess deposits in Beijing and their paleoclimatic implications during the last interglacial-glacial cycle[J]. QUATERNARY SCIENCE REVIEWS,2017,177:78-87.
APA	Tian, Shengchen,Sun, Jimin,&Gong, Zhijun.(2017).Loess deposits in Beijing and their paleoclimatic implications during the last interglacial-glacial cycle.QUATERNARY SCIENCE REVIEWS,177,78-87.
MLA	Tian, Shengchen,et al."Loess deposits in Beijing and their paleoclimatic implications during the last interglacial-glacial cycle".QUATERNARY SCIENCE REVIEWS 177(2017):78-87.